Direct Variation

Direct Variation

8th Grade

10 Qs

quiz-placeholder

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Assessment

Quiz

Mathematics

8th Grade

Practice Problem

Medium

CCSS
7.RP.A.2, 6.EE.C.9, 8.EE.B.5

+6

Standards-aligned

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10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

 y varies directly with x, and y is 84 when x is 16. What is the constant of proportionality?

y = (21/4)x
k= 21
k= 5.25
k= 4/21

Tags

CCSS.7.EE.B.4

CCSS.7.RP.A.2

2.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

The amount of money earned on a job is directly proportional to the number of hours worked.  If $70.00 is earned in 5 hours, how much money is earned in 22 hours of work?

$2
$308
$1.57
$265

Tags

CCSS.7.EE.B.3

CCSS.7.RP.A.1

CCSS.7.RP.A.2

CCSS.7.RP.A.3

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Is the given table a direct variation? If so, what is the constant?

Yes; 1/4
Yes; 4
Yes; 2
No

Tags

CCSS.7.RP.A.2

CCSS.7.RP.A.3

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

Write the equation for the table given.

y = 1/3x
y = 3x
y = 1/2x

Tags

CCSS.6.EE.C.9

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Find the unit rate:  $3.60 for 3 pounds of apples. How much does it cost for 1 pound of apples?

$1.00 per pound
$3.60 per pound
$1.20 per pound
$1.10 per pound

Tags

CCSS.7.RP.A.1

CCSS.7.RP.A.2

6.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Is this proportional?
y=2x

yes
no

Tags

CCSS.7.RP.A.2

7.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

Media Image

Which of the given graphs is a direct variation?

A
B
C
D

Tags

CCSS.8.EE.B.5

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